Sounds like a swinger type relationship to me. Perhaps the woman's husband is the type of guy who gets off watching his wife with other men. I don't agree with this relationship being half-opened since he does have the option to have sex with other women but chooses not to for whatever reason. One thing I don't understand is why the woman's stories of her lifestyle would make you dislike her though.
I guess I didn't explain everything as I didn't want to belabor the point, but she basically told me that I was woefully inexperienced and would never truly achieve absolute pleasure unless I had multiple partners, preferably at the same time. There's a certain "ick" factor there for me. I'm sure for some people it's ok.
The way she described her husband was pretty deplorable, too. She did say he wasn't fond of "stepping out," as she put it, but was OK with her doing it.
Doesn't really jive with me.